/**
 * 日期格式化
 * @param time
 * @returns {*}
 */
function formatDate(time) {
	if (time == '' || time == null || time == undefined) return '';
	var datetime = new Date();
	datetime.setTime(time);
	var year = datetime.getFullYear();
	var month = datetime.getMonth() + 1 < 10 ? "0" + (datetime.getMonth() + 1) : datetime.getMonth() + 1;
	var date = datetime.getDate() < 10 ? "0" + datetime.getDate() : datetime.getDate();
	var hour = datetime.getHours() < 10 ? "0" + datetime.getHours() : datetime.getHours();
	var minute = datetime.getMinutes() < 10 ? "0" + datetime.getMinutes() : datetime.getMinutes();
	var second = datetime.getSeconds() < 10 ? "0" + datetime.getSeconds() : datetime.getSeconds();
	return year + "-" + month + "-" + date + " " + hour + ":" + minute + ":" + second;
}

function isNull(obj) {
	if (obj == null || obj == '') {
		return true;
	} else {
		return false;
	}
}